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<a name="1" href="#1">1</a>   <strong class="jxr_keyword">package</strong> org.oleg.fcs.web.filter;
<a name="2" href="#2">2</a>   
<a name="3" href="#3">3</a>   <strong class="jxr_keyword">import</strong> org.oleg.fcs.client.FlexCompilerSocketImpl;
<a name="4" href="#4">4</a>   <strong class="jxr_keyword">import</strong> org.oleg.fcs.client.LocalCompilerStarter;
<a name="5" href="#5">5</a>   <strong class="jxr_keyword">import</strong> org.oleg.fcs.api.FlexCompiler;
<a name="6" href="#6">6</a>   <strong class="jxr_keyword">import</strong> org.oleg.fcs.api.CompilationResults;
<a name="7" href="#7">7</a>   <strong class="jxr_keyword">import</strong> org.oleg.fcs.Constants;
<a name="8" href="#8">8</a>   <strong class="jxr_keyword">import</strong> org.apache.commons.logging.Log;
<a name="9" href="#9">9</a>   <strong class="jxr_keyword">import</strong> org.apache.commons.logging.LogFactory;
<a name="10" href="#10">10</a>  
<a name="11" href="#11">11</a>  <strong class="jxr_keyword">import</strong> javax.servlet.*;
<a name="12" href="#12">12</a>  <strong class="jxr_keyword">import</strong> javax.servlet.http.HttpServletRequest;
<a name="13" href="#13">13</a>  <strong class="jxr_keyword">import</strong> javax.servlet.http.HttpServletResponse;
<a name="14" href="#14">14</a>  <strong class="jxr_keyword">import</strong> java.io.*;
<a name="15" href="#15">15</a>  <strong class="jxr_keyword">import</strong> java.util.Date;
<a name="16" href="#16">16</a>  <strong class="jxr_keyword">import</strong> java.util.List;
<a name="17" href="#17">17</a>  <strong class="jxr_keyword">import</strong> java.util.Properties;
<a name="18" href="#18">18</a>  <strong class="jxr_keyword">import</strong> java.util.regex.Pattern;
<a name="19" href="#19">19</a>  <strong class="jxr_keyword">import</strong> java.text.DateFormat;
<a name="20" href="#20">20</a>  <strong class="jxr_keyword">import</strong> java.text.SimpleDateFormat;
<a name="21" href="#21">21</a>  
<a name="22" href="#22">22</a>  <em class="jxr_javadoccomment">/**</em>
<a name="23" href="#23">23</a>  <em class="jxr_javadoccomment"> * TODO: Class Description</em>
<a name="24" href="#24">24</a>  <em class="jxr_javadoccomment"> *</em>
<a name="25" href="#25">25</a>  <em class="jxr_javadoccomment"> * @author Oleg Ilyenko</em>
<a name="26" href="#26">26</a>  <em class="jxr_javadoccomment"> */</em>
<a name="27" href="#27">27</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/oleg/fcs/web/filter/DynamicFlexCompilationFilter.html">DynamicFlexCompilationFilter</a> implements Filter {
<a name="28" href="#28">28</a>  
<a name="29" href="#29">29</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Log log = LogFactory.getLog(DynamicFlexCompilationFilter.<strong class="jxr_keyword">class</strong>);
<a name="30" href="#30">30</a>  
<a name="31" href="#31">31</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> DateFormat SDF = <strong class="jxr_keyword">new</strong> SimpleDateFormat(<span class="jxr_string">"E, dd MMM yyyy HH:mm:ss"</span>);
<a name="32" href="#32">32</a>  
<a name="33" href="#33">33</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">interface</strong> <a href="../../../../../org/oleg/fcs/web/filter/DynamicFlexCompilationFilter.html">InitParams</a> {
<a name="34" href="#34">34</a>          String PORT = <span class="jxr_string">"port"</span>;
<a name="35" href="#35">35</a>          String HOST = <span class="jxr_string">"host"</span>;
<a name="36" href="#36">36</a>  
<a name="37" href="#37">37</a>          String TARGET_DIR = <span class="jxr_string">"targetDir"</span>;
<a name="38" href="#38">38</a>  
<a name="39" href="#39">39</a>          String FLEX_PROJECT = <span class="jxr_string">"flexProject"</span>;
<a name="40" href="#40">40</a>  
<a name="41" href="#41">41</a>          String FILTERRESOURCE_REGEXP = <span class="jxr_string">"filterResourceRegexp"</span>;
<a name="42" href="#42">42</a>  
<a name="43" href="#43">43</a>          String COMPILER_PROPERTIES = <span class="jxr_string">"compilerProperties"</span>;
<a name="44" href="#44">44</a>          String COMPILER_PROPERTIES_FILE = <span class="jxr_string">"compilerPropertiesFile"</span>;
<a name="45" href="#45">45</a>      }
<a name="46" href="#46">46</a>  
<a name="47" href="#47">47</a>      <strong class="jxr_keyword">private</strong> FilterConfig filterConfig;
<a name="48" href="#48">48</a>  
<a name="49" href="#49">49</a>      <strong class="jxr_keyword">private</strong> FlexCompiler compiler;
<a name="50" href="#50">50</a>  
<a name="51" href="#51">51</a>      <strong class="jxr_keyword">private</strong> File flexProject;
<a name="52" href="#52">52</a>  
<a name="53" href="#53">53</a>      <strong class="jxr_keyword">private</strong> File targetDir;
<a name="54" href="#54">54</a>  
<a name="55" href="#55">55</a>      <strong class="jxr_keyword">private</strong> Pattern filterResource;
<a name="56" href="#56">56</a>  
<a name="57" href="#57">57</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> init(FilterConfig filterConfig) <strong class="jxr_keyword">throws</strong> ServletException {
<a name="58" href="#58">58</a>          <strong class="jxr_keyword">this</strong>.filterConfig = filterConfig;
<a name="59" href="#59">59</a>  
<a name="60" href="#60">60</a>          String host = Constants.CLIENT_DEFAULT_HOST;
<a name="61" href="#61">61</a>          <strong class="jxr_keyword">int</strong> port = Constants.DEFAULT_PORT;
<a name="62" href="#62">62</a>  
<a name="63" href="#63">63</a>          <strong class="jxr_keyword">if</strong> (filterConfig.getInitParameter(InitParams.HOST) != <strong class="jxr_keyword">null</strong>) {
<a name="64" href="#64">64</a>              host = filterConfig.getInitParameter(InitParams.HOST);
<a name="65" href="#65">65</a>          }
<a name="66" href="#66">66</a>          <strong class="jxr_keyword">if</strong> (filterConfig.getInitParameter(InitParams.PORT) != <strong class="jxr_keyword">null</strong>) {
<a name="67" href="#67">67</a>              port = Integer.valueOf(filterConfig.getInitParameter(InitParams.PORT));
<a name="68" href="#68">68</a>          }
<a name="69" href="#69">69</a>  
<a name="70" href="#70">70</a>          FlexCompiler c = <strong class="jxr_keyword">null</strong>;
<a name="71" href="#71">71</a>  
<a name="72" href="#72">72</a>          <strong class="jxr_keyword">try</strong> {
<a name="73" href="#73">73</a>              c = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/oleg/fcs/client/FlexCompilerSocketImpl.html">FlexCompilerSocketImpl</a>(host, port);
<a name="74" href="#74">74</a>          } <strong class="jxr_keyword">catch</strong> (Exception e) {
<a name="75" href="#75">75</a>              String message = <span class="jxr_string">"Unable to connect to the compilation server. Building project localy (this can be much slower). It's recommended to use server."</span>;
<a name="76" href="#76">76</a>              log.warn(message);
<a name="77" href="#77">77</a>              System.err.println(message);
<a name="78" href="#78">78</a>  
<a name="79" href="#79">79</a>              Properties cp = <strong class="jxr_keyword">new</strong> Properties();
<a name="80" href="#80">80</a>  
<a name="81" href="#81">81</a>              <strong class="jxr_keyword">try</strong> {
<a name="82" href="#82">82</a>                  String compilerProperties = filterConfig.getInitParameter(InitParams.COMPILER_PROPERTIES);
<a name="83" href="#83">83</a>                  String compilerPropertiesFile = filterConfig.getInitParameter(InitParams.COMPILER_PROPERTIES_FILE);
<a name="84" href="#84">84</a>                  <strong class="jxr_keyword">if</strong> (compilerProperties != <strong class="jxr_keyword">null</strong> &amp;&amp; !compilerProperties.trim().equals(<span class="jxr_string">""</span>)) {
<a name="85" href="#85">85</a>                      cp.load(<strong class="jxr_keyword">new</strong> StringReader(compilerProperties));
<a name="86" href="#86">86</a>                  } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (compilerPropertiesFile != <strong class="jxr_keyword">null</strong> &amp;&amp; !compilerPropertiesFile.trim().equals(<span class="jxr_string">""</span>)) {
<a name="87" href="#87">87</a>                      cp.load(<strong class="jxr_keyword">new</strong> FileInputStream(resolveFile(compilerPropertiesFile)));
<a name="88" href="#88">88</a>                  }
<a name="89" href="#89">89</a>  
<a name="90" href="#90">90</a>                  <a href="../../../../../org/oleg/fcs/client/LocalCompilerStarter.html">LocalCompilerStarter</a> localCompilerStarter = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/oleg/fcs/client/LocalCompilerStarter.html">LocalCompilerStarter</a>(cp);
<a name="91" href="#91">91</a>                  c = localCompilerStarter.getCompiller();
<a name="92" href="#92">92</a>              } <strong class="jxr_keyword">catch</strong> (IOException e1) {
<a name="93" href="#93">93</a>                  <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> ServletException(e);
<a name="94" href="#94">94</a>              }
<a name="95" href="#95">95</a>          }
<a name="96" href="#96">96</a>  
<a name="97" href="#97">97</a>          compiler = c;
<a name="98" href="#98">98</a>  
<a name="99" href="#99">99</a>          String p = filterConfig.getInitParameter(InitParams.FLEX_PROJECT);
<a name="100" href="#100">100</a>         <strong class="jxr_keyword">if</strong> (p == <strong class="jxr_keyword">null</strong> || p.trim().equals(<span class="jxr_string">""</span>)) {
<a name="101" href="#101">101</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(<span class="jxr_string">"Please, set the project dir or file you want to compile"</span>);
<a name="102" href="#102">102</a>         } <strong class="jxr_keyword">else</strong> {
<a name="103" href="#103">103</a>             File f = resolveFile(p);
<a name="104" href="#104">104</a>             <strong class="jxr_keyword">if</strong> (f.isDirectory()) {
<a name="105" href="#105">105</a>                 flexProject = <strong class="jxr_keyword">new</strong> File(f, Constants.DEFAULT_PROJECT_FILE_NAME);
<a name="106" href="#106">106</a>             } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (f.isFile()) {
<a name="107" href="#107">107</a>                 flexProject = f;
<a name="108" href="#108">108</a>             }
<a name="109" href="#109">109</a>         }
<a name="110" href="#110">110</a> 
<a name="111" href="#111">111</a>         String t = filterConfig.getInitParameter(InitParams.TARGET_DIR);
<a name="112" href="#112">112</a>         <strong class="jxr_keyword">if</strong> (t == <strong class="jxr_keyword">null</strong> || t.trim().equals(<span class="jxr_string">""</span>)) {
<a name="113" href="#113">113</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(<span class="jxr_string">"Please, set the target dir where you want to compile project"</span>);
<a name="114" href="#114">114</a>         } <strong class="jxr_keyword">else</strong> {
<a name="115" href="#115">115</a>             targetDir = resolveFile(t);
<a name="116" href="#116">116</a>         }
<a name="117" href="#117">117</a> 
<a name="118" href="#118">118</a>         filterResource = Pattern.compile(filterConfig.getInitParameter(InitParams.FILTERRESOURCE_REGEXP));
<a name="119" href="#119">119</a>     }
<a name="120" href="#120">120</a> 
<a name="121" href="#121">121</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> doFilter(ServletRequest request, ServletResponse response, FilterChain chain) <strong class="jxr_keyword">throws</strong> IOException, ServletException {
<a name="122" href="#122">122</a>         String currentPath = ((HttpServletRequest) request).getServletPath();
<a name="123" href="#123">123</a> 
<a name="124" href="#124">124</a>         <strong class="jxr_keyword">if</strong> (!filterResource.matcher(currentPath).matches()) {
<a name="125" href="#125">125</a>             chain.doFilter(request, response);
<a name="126" href="#126">126</a>             <strong class="jxr_keyword">return</strong>;
<a name="127" href="#127">127</a>         }
<a name="128" href="#128">128</a> 
<a name="129" href="#129">129</a>         System.out.println(<span class="jxr_string">"Flex compiler: Starting..."</span>);
<a name="130" href="#130">130</a> 
<a name="131" href="#131">131</a>         <strong class="jxr_keyword">if</strong> (currentPath.indexOf(<span class="jxr_string">"/"</span>) != -1) {
<a name="132" href="#132">132</a>             currentPath = currentPath.substring(currentPath.lastIndexOf(<span class="jxr_string">"/"</span>) + 1);
<a name="133" href="#133">133</a>         }
<a name="134" href="#134">134</a> 
<a name="135" href="#135">135</a>         String currentBaseName = currentPath.substring(0, currentPath.indexOf(<span class="jxr_string">"."</span>));
<a name="136" href="#136">136</a> 
<a name="137" href="#137">137</a>         List&lt;CompilationResults&gt; results = <strong class="jxr_keyword">null</strong>;
<a name="138" href="#138">138</a>         <strong class="jxr_keyword">try</strong> {
<a name="139" href="#139">139</a>             results = compiler.compile(currentBaseName, flexProject, targetDir.getAbsolutePath());
<a name="140" href="#140">140</a>         } <strong class="jxr_keyword">catch</strong> (Exception e) {
<a name="141" href="#141">141</a>             log.error(<span class="jxr_string">"Error during compillation."</span>, e);
<a name="142" href="#142">142</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> ServletException(e);
<a name="143" href="#143">143</a>         }
<a name="144" href="#144">144</a> 
<a name="145" href="#145">145</a>         <strong class="jxr_keyword">boolean</strong> hasErrors = false;
<a name="146" href="#146">146</a>         <strong class="jxr_keyword">for</strong> (CompilationResults cr : results) {
<a name="147" href="#147">147</a>             <strong class="jxr_keyword">if</strong> (cr.isHasErrors()) {
<a name="148" href="#148">148</a>                 hasErrors = <strong class="jxr_keyword">true</strong>;
<a name="149" href="#149">149</a>             }
<a name="150" href="#150">150</a>         }
<a name="151" href="#151">151</a> 
<a name="152" href="#152">152</a>         StringBuilder prot = <strong class="jxr_keyword">new</strong> StringBuilder();
<a name="153" href="#153">153</a>         <strong class="jxr_keyword">for</strong> (CompilationResults cr : results) {
<a name="154" href="#154">154</a>             System.out.println(cr.toString());
<a name="155" href="#155">155</a>             prot.append(cr.toString());
<a name="156" href="#156">156</a>         }
<a name="157" href="#157">157</a> 
<a name="158" href="#158">158</a>         <strong class="jxr_keyword">if</strong> (hasErrors) {
<a name="159" href="#159">159</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalStateException(prot.toString());
<a name="160" href="#160">160</a>         } <strong class="jxr_keyword">else</strong> {
<a name="161" href="#161">161</a>             giveResourceDirectly(request, response);
<a name="162" href="#162">162</a>         }
<a name="163" href="#163">163</a>     }
<a name="164" href="#164">164</a> 
<a name="165" href="#165">165</a>     <strong class="jxr_keyword">protected</strong> File resolveFile(String path) {
<a name="166" href="#166">166</a>         File testFile = <strong class="jxr_keyword">new</strong> File(path);
<a name="167" href="#167">167</a> 
<a name="168" href="#168">168</a>         <strong class="jxr_keyword">if</strong> (testFile.isAbsolute()) {
<a name="169" href="#169">169</a>             <strong class="jxr_keyword">return</strong> testFile;
<a name="170" href="#170">170</a>         } <strong class="jxr_keyword">else</strong> {
<a name="171" href="#171">171</a>             <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> File(filterConfig.getServletContext().getRealPath(<span class="jxr_string">"/"</span>), path);
<a name="172" href="#172">172</a>         }
<a name="173" href="#173">173</a>     }
<a name="174" href="#174">174</a> 
<a name="175" href="#175">175</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> giveResourceDirectly(ServletRequest request, ServletResponse response) <strong class="jxr_keyword">throws</strong> IOException, ServletException {
<a name="176" href="#176">176</a>         HttpServletRequest httpRequest = (HttpServletRequest) request;
<a name="177" href="#177">177</a>         HttpServletResponse resp = (HttpServletResponse) response;
<a name="178" href="#178">178</a> 
<a name="179" href="#179">179</a>         <em class="jxr_comment">//resp.setHeader("Cache-Control", "no-cache");</em>
<a name="180" href="#180">180</a>         resp.setHeader(<span class="jxr_string">"Expires"</span>, <span class="jxr_string">" Mon, 20 Dec 1998 01:00:00 GMT"</span>);
<a name="181" href="#181">181</a>         resp.setHeader(<span class="jxr_string">"Last-Modified"</span>, SDF.format(<strong class="jxr_keyword">new</strong> Date()) + <span class="jxr_string">" GMT"</span>);
<a name="182" href="#182">182</a>         resp.setHeader(<span class="jxr_string">"Cache-Control"</span>, <span class="jxr_string">"no-cache, must-revalidate"</span>);
<a name="183" href="#183">183</a>         resp.setHeader(<span class="jxr_string">"Pragma"</span>, <span class="jxr_string">"no-cache"</span>);
<a name="184" href="#184">184</a> 
<a name="185" href="#185">185</a>         <strong class="jxr_keyword">long</strong> t = System.currentTimeMillis();
<a name="186" href="#186">186</a>         File f = <strong class="jxr_keyword">new</strong> File(httpRequest.getSession().getServletContext().getRealPath(httpRequest.getServletPath()));
<a name="187" href="#187">187</a>         OutputStream out = resp.getOutputStream();
<a name="188" href="#188">188</a>         InputStream in = <strong class="jxr_keyword">new</strong> FileInputStream(f);
<a name="189" href="#189">189</a> 
<a name="190" href="#190">190</a>         byte[] buf = <strong class="jxr_keyword">new</strong> byte[100000];
<a name="191" href="#191">191</a>         <strong class="jxr_keyword">int</strong> len;
<a name="192" href="#192">192</a>         <strong class="jxr_keyword">while</strong> ((len = in.read(buf)) != -1) {
<a name="193" href="#193">193</a>             out.write(buf, 0, len);
<a name="194" href="#194">194</a>         }
<a name="195" href="#195">195</a> 
<a name="196" href="#196">196</a>         out.flush();
<a name="197" href="#197">197</a>         out.close();
<a name="198" href="#198">198</a>     }
<a name="199" href="#199">199</a> 
<a name="200" href="#200">200</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> destroy() {
<a name="201" href="#201">201</a>     }
<a name="202" href="#202">202</a> }
</pre>
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